Transit photometry is currently the most prolific method for detecting exoplanets, with more than \(3\,000\)  discovered to this day, mostly using space-based missions, like Kepler [1]} and TESS [2]}. These missions excel in detecting exoplanets thanks to their high cadence, highly-precise photometry and continuous sampling of large samples of stars. Nevertheless, there is still some chance that sparse low-cadence photometry, while far from being optimal for that purpose, would also be able to detect transiting exoplanets.
In fact, the transits of two exoplanets that had been detected by radial velocities – HD 209458b [3]} and HD 189733b [4]} were later found in the archived photometry of the first all-sky astrometric mission Hipparcos [5]}.
The Hipparcos photometric time series had fewer than 200 measurements each, but still managed to sample the planetary transits [6]}, [7]}.
These detections proved it was possible that such sparse and low-cadence observations may sample a meaningful number of transit events.
